Releasable driving mechanism.



G. A. ANDERSON. RBLEASABLE DRIVING MECHANISM. APPLIGATION FILED OCT. 17,1912.

1,082,105, Patented Dc. 23, 1913.

COLUMBIA PLANOGRAPH c0 \WASHIRGTON n c UNITED STATES FATE? FFEC.

GEORGE A. ANDERSON, OF BOTI-IELL, WASHINGTON.

RELEASABLE DRIVING TIIEGHANISM.

Application filed October 17, 1912.

T0 alt whom it may concern Be it known that I, Gnonon A. Annnnson, acitizen of the United States of America, and a resident of the city ofBothell, in the county of King and State of Vashington, have inventedcertain new and useful Improvements in Releasable Driving Mechanism, ofwhich the following is a specification.

The primary object of my invention is to provide an efficient connectionof the above character which will act automatically to disconnect thedriving and driven mechanisms.

Other objects will be set forth as the description progresses, and thescope of my invention set forth in the claims hereto anneXed.

Referring now to the accompanying drawing, in which like numerals ofreference indicate like parts throughout: Figure 1 is a plan view ofsuitable mechanism in which a releasable driving mechanism, embodying myinvention, is employed. Fig. 2 is a similar view on enlarged scale, withthe driven mechanism removed, and illustrating the releasable mechanismas having been released from the drive mechanism, and Fig. 3 is asection taken on line 33 of Fig. 2.

Referring now to the drawing by numerals of reference, 1 and 2 indicatethe drive and driven mechanisms respectively and 3 indicates thereleasable mechanism, through the medium of which, power is transmittedto the driven mechanism.

Mechanism 3 which comprises a. shaft journaled in a bearing 6, andprovided with a sprocket wheel 7 and a bevel gear 8 is slidablysupported for movement, toward and from a releasing position, on a plate4:, secured to a suitable foundation 5 (see Fig. 1).

The driven mechanism as now considered, consists of an endless chain,which passing over sprocket wheel 7, holds the releasable mechanismagainst the tension of springs 10, with its bevel gear 8 in mesh with asimilar gear 9 of the drive mechanism.

Bearing 6 is provided with opposite flanges 6, formed with cam slots 11through which headed studs or pins 12, fixed to plate 4t, project.

By this construction, upon breaking of the driven mechanism, thereleasable mechanism in being moved by springs 10, is forced laterallythereby effecting disengagement of Specification of Letters Patent.

Patented Dec. 23, 31%13.

Serial No. teaser.

gears S and 9. Under ordinary conditions, the chain 2, when broken,would jam between either of the sprockets and the adjacent supportingframe portion thereby distorting the chain and the surrounding parts. Inthe present construction, power being thus promptly cut off from thedriven mechanism, injury to life as well as to the machinery itself willobviously be prevented.

l Vhile I have herein illustrated an embodiment of my invention whichwill carry out the functions assigned thereto, 1 do not wish to beunderstood as limiting myself except as indicated in my claims.

Having thus described my invention what I claim as new, and desire tosecure by Letters Patent of the United States of America, is

1. In combination with a drive mechanism, a releasable drivingmechanism, supported for movement toward and from said drive mechanism,and endless flexible means connected to receive power from said drivingmechanism and hold said driving mechanism in its operative position, andresilient means tending to force said driving mechanism to a releasingposition.

2. In a device of the character described, a drive shaft, a gearthereon, a driving mechanism slidably supported, a gear on said drivingmechanism normally in mesh with said first named gear, a chain, asprocket wheel on said driving mechanism over which said chain passes,and springs tending toforce said driving mechanism from said driveshaft, for the purpose specified.

8. In a device of the character described, a drive shaft, a gearthereon, a bearing slidably supported and provided with cam slots, fixedpins projecting through the slots o said bearing, a shaft journaled insaid bearing, a gear on said shaft normally in mesh with said firstnamed gear, a sprocket wheel on said last named shaft, means tending toslide said bearing so as to disengage said gears, and a chain passingover said sprocket wheel and thereby holding said last named gear inmesh with said first named gear.

4. In combination with drive and driven mechanisms, a releasable drivingmechanism therebetween, a support on which said re leasable drivingmechanism is mounted for movement toward and from said drive mechanism,said driven mechanism retaining the driving mechanism in its operativeposition,

and means interposed between the support and the releasable drivingmechanism for moving the latter to a releasing position when released bysaid driven mechanism.

5. In combination With drive and driven mechanisms, a releasable drivingmechanism therebetween slidably supported for movement toward and fromsaid drive mechanism and being held in its operative position againstsliding by said driven mechanism. 10

Signed at Seattle, Vashington, this 8th day of October, 1912.

GEORGE A. ANDERSON. Vitnesses:

EDWIN C. EWING, E. ARLITA ADAMS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Yatents. Washington, D. C.

